delta/glibc.git - sourceware.org: git/glibc.git

	Commit message (Collapse)	Author	Age	Files	Lines
*	powerpc: Optimized st{r,p}cpy for POWER8/PPC64	Adhemerval Zanella	2015-01-13	1	-0/+24
	This patch adds an optimized POWER8 strcpy using unaligned accesses. For strings up to 16 bytes the implementation first calculate the string size, like strlen, and issues a memcpy. For larger strings, source is first aligned to 16 bytes and then tested over a loop that reads 16 bytes am combine the cmpb results for speedup. Special case is added for page cross reads. It shows 30%-60% improvement over the optimized POWER7 one that uses only aligned accesses.